na PBTAN000000000000942 20250303085833 0010-1124000097 ta 250303 g 0 eng Horton, Douglas Pengarang Potatoes : Production, marketing, and programs for developing countries / Douglas Horton cetakan pertama xii, 243 halaman : ilustrasi ; 23 cm New York : Winrok International, 1987 rdacontent teks rdamedia tanpa perantara rdacarrier volume 633.491 633.491 HOR p kentang umbi-umbian produktivitas pertanian tanaman pangan penjualan pertanian